Malaria & Arthritis but not COVID-19

Hydroxychloroquine can be used to prevent Malaria when traveling:

Hydroxychloroquine can be used for Arthritis; however,

Hydroxychloroquine is too dangerous to use to minimize risk of death from COVID-19.

How does that make sense to anyone unless it is a financial decision?

There are several medications that are FDA approved for depression that have sudden death as a side effect.